Material: Coconut Husk, Buffalo Bone, Clear Horn & Black Horn. Instrument: We recommend Jazz Tones Groove for Electric Guitar, Acoustic Guitar & Archtop Jazz Guitar. Tone: Coconut Husk and Buffalo Horn are medium hardness materials with rounded warm tones. Buffalo Bone is very hard with clear clean crisp brighter tones. Design: Jazz Tones Groove are based upon the Jazz III shape, however they are 2.2mm thick with a chamfer leading down to a very sharp pointed tip. They also have a concave recess on one side for the thumb. Contents: This pack contains 1 of each of the Jazz Tones Groove Guitar Picks. Notes: Although we have tried to ensure that our photos represent the Guitar Pick that you will receive, there is a high level of variety in our picks due to the nature of many of our natural materials.